Analysis
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max time kernel
107s -
max time network
83s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26-05-2024 02:32
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240508-en
General
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Target
XClient.exe
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Size
183KB
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MD5
2b2588dbc679d917268e4ec17783db91
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SHA1
5d3d9b5e548972155ebf7fb8506eeb87ee8d1c85
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SHA256
a089baba4b046b231c5008343025b97f47bab795bdebd0fb47c608053ba4d8b8
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SHA512
11615bbf4477ad683b5cfd5ecf1fbffb7ec957a76b47c012de67f7540ac26b42e63c965cbc028da9430a43f340b4889c5b80de416f83364d6b8d1783c41f4c86
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SSDEEP
3072:JMf71a4l72Me/sigR1b60M7MDVOyFMgBz65/M6If+3Js+3JFkKeTno:JyPrbjM7KxBt25
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
Spoofer.exe
Signatures
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2220-1-0x0000000000120000-0x0000000000154000-memory.dmp family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 2924 powershell.exe 2680 powershell.exe 2516 powershell.exe 3028 powershell.exe -
Drops startup file 2 IoCs
Processes:
XClient.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Spoofer.lnk XClient.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Spoofer.lnk XClient.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
XClient.exepid process 2220 XClient.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 2924 powershell.exe 2680 powershell.exe 2516 powershell.exe 3028 powershell.exe 2220 XClient.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2220 XClient.exe Token: SeDebugPrivilege 2924 powershell.exe Token: SeDebugPrivilege 2680 powershell.exe Token: SeDebugPrivilege 2516 powershell.exe Token: SeDebugPrivilege 3028 powershell.exe Token: SeDebugPrivilege 2220 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 2220 XClient.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
XClient.exedescription pid process target process PID 2220 wrote to memory of 2924 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2924 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2924 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2680 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2680 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2680 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2516 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2516 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 2516 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 3028 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 3028 2220 XClient.exe powershell.exe PID 2220 wrote to memory of 3028 2220 XClient.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Drops startup file
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2924
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2680
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Spoofer.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2516
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Spoofer.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3028
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD53b77937c3ddcafa72efad70593cd5fd0
SHA1266dcc1e19284acb275c14d44a126ca50d4d115c
SHA2567498468f3a2c3e351537886b0fa9bb29203b7a8e0360f43f71ca4e9d052143ab
SHA5121a36bb47454d366c57bf2497c08e21435f0e6d6001a68ab590e6bf9ebf1484a046641f77f510fb73aec1491ce0c4079b06386f5280535bc8e30375b2b28f7c60
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e